linux-kernel - Re: [PATCH v4] xfrm: take net hdr len into account for esp payload size calculation

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Message-Id: <20120527.010907.594471916322063411.davem@davemloft.net>
Date:	Sun, 27 May 2012 01:09:07 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	bpoirier@...e.de
Cc:	netdev@...r.kernel.org, kuznet@....inr.ac.ru, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net,
	linux-kernel@...r.kernel.org, steffen.klassert@...unet.com,
	diego.beltrami@...il.com
Subject: Re: [PATCH v4] xfrm: take net hdr len into account for esp payload
 size calculation

From: Benjamin Poirier <bpoirier@...e.de>
Date: Thu, 24 May 2012 17:32:38 -0400

> Corrects the function that determines the esp payload size. The calculations
> done in esp{4,6}_get_mtu() lead to overlength frames in transport mode for
> certain mtu values and suboptimal frames for others.
> 
> According to what is done, mainly in esp{,6}_output() and tcp_mtu_to_mss(),
> net_header_len must be taken into account before doing the alignment
> calculation.
> 
> Signed-off-by: Benjamin Poirier <bpoirier@...e.de>

Applied and queued up for -stable, thanks.
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